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marshmallow 4.2.3 documentation
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Usage guide

  • Installation
  • Quickstart
  • Nesting schemas
  • Custom fields
  • Extending schemas
    • Pre-processing and post-processing methods
    • Schema-level validation
    • Using original input data
    • Overriding how attributes are accessed
    • Custom error handling
    • Custom class Meta options
    • Custom error messages
  • Examples
    • Validating package.json
    • Quotes API (Flask + SQLAlchemy)
    • Inflection (camel-cased keys)

API reference

  • Top-level API
  • Schema
  • Fields
  • Decorators
  • Validators
  • Utility functions
  • Context (experimental)
  • Exceptions
  • Private API
    • Types
    • Class registry
    • Error store

Project info

  • Why marshmallow?
  • Changelog
  • Upgrading to newer releases
  • Who’s using marshmallow?
  • License
  • Contributing guidelines
  • Code of Conduct
  • Kudos
  • Donate

Useful links

  • marshmallow @ PyPI
  • marshmallow @ GitHub
  • Issue Tracker
  • Ecosystem
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Kudos¶

A hat tip to Django Rest Framework , Flask-RESTful, and colander for ideas and API design.

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